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Finding the Fourth Proportional to 576,891.44, 865,419.17 and 177,565.49

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Solution

The fourth proportional to 576,891.44, 865,419.17 and 177,565.49 is: 266,373.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,891.44 : 865,419.17 = 177,565.49 : x
  2. Step 2: Convert to fraction form
    576,891.44/865,419.17 = 177,565.49/x
  3. Step 3: Cross multiply
    576,891.44x = 865,419.17 × 177,565.49
  4. Step 4: Simplify right side
    576,891.44x = 153,668,573,761.52
  5. Step 5: Solve for x
    x = 153,668,573,761.52/576,891.44
  6. Step 6: Final answer
    x = 266,373.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.